Locomotive-cross-head guide.



H. H. WALCK.

LOCOMOTIVE CROSS HEAD GUIDE.

APPLICATION FILED FEB- 10, I916- Patented July 4, 1916.

--HU GH H. "WALCK, OF CHAMBERSBURG, PENNSYLVANIA.

LOCOMOTIVE-CROSS-HEAD GUIDE.

Specification of Lettersiatent.

Patented July 4, 1916.

Application filed February 10, I916. Serial No; 77,515.

To all whom 'it'may concern Be it known that I, HUGH H. VVALcK, a citizen of the United States, and resident of Ch'ambersburg, inthe'county of Frank- 'lin, and in the State of Pennsylvania, have invented a-certain new and useful Improveme'nt' in Locomotive-Cross Head Guides, and

' do hereby declare that [the following is a full, clear, and'exact description thereof.

My invention relates to'locomotive cross head guides, andthe object of myinvention is *to provide an adjustable construction which will enable that adjustment which is necessary to compensate for wear, to be easily and rapidly performed, while at the same time'providing a construction of the durability and strength which locomotive usage necessitates. Government regulations respecting the extent of looseness that may be allowed in a locomotive cross-head are strict and rigidly enforced, and it requires from one to threehours to make the adjustments that are required to compensate for wear with the guide construction now in use. The importance'and desirability of an efficient and quickly operable adjusting means will be evident.

\Vith the object stated in view,'my'invention consists in 'the-adjustable cross head guide constructed substantially as hereinafter specified and claimed, and an embodiment of-myinventi'on is shown in the accompanyingdrawings'in which' Y Figure 1 is a perspective view of such a cross head guide;- Fig. 2 a similar view showing certain tram parts separated, Fig.

3 is a longitudinalsection showing-'theparts assembled; Fig. 4 is a crosssectionon the line H of Fig. 3.

A locomotive cross head has two guides, an upper and a'lower-one, but adjustment "for wear is preferably made only at the lower lguide because any adjustment of the upper guide may derange the cylinder valve mechanism, 'andwhile my construction can be used, both for upper and lower guides, I will I describe the construction with referenc'eto its use as alower guide,but with'the understanding that I do not limitmyself to its use "for the lower guide, because, as I have just stated, it can be used for both upper and lower guides.

Proceeding now with the-description of the construction with reference to the lower guide, it will be found that :employ as a base, or fixed member, a horizontal bar =10,

which, at its o'pposite ends is respectively 'bolted tothe cylinder head Hand the yoke Y, the opposite ends ofthe barbeirig preferably reduced I in thickness for the -conv'en ient application of'the fastening bolts, and in its upper side said bar 10 has arecess 110 which is of a length'that at'each end stops a little short of'the'reduced ends ofthebar, and is of a width equal tothe width of the bar,-'and in said recess is'placed the cross head wear-receiving member 11, which for purpose. of'distinction I' shall refer to by the designation block. The block receives the wear of the crossheadon its outer or upper -side, and it isadjustable vertically tochange the level of" its upperside to compensate 'for wear and, of course, its-length is so proportioned tothe' stroke of'the cross head that it affords a bearing for-the cross head throughout its stroke. Near each e'nd the block 11 hasin its underside a T-slot 12, "the narrow partof the T opening downwardto receivethe head and shank of a vertical adjustingbolt which passes downward through athreadedhole 141 in the bar 10 with its lower end emerging and suitably formed 'for the application of a tool' to revolve the screwto affect the vertical adjustment of thewearreceivingblock 11. I

preferably provide the @protruding end of justing bolt outside the'bar 10. At'each end the block 11 rests upon a plate '17,"Whl0l1 is -seated-in and'is adapted'to fill a transverse slot, or recess 18 in the bar 10, and

when the block 11-is moved upward for ad justment purposes, thin plates, 'or=liner's' are inserted betweensaid plate and the bottom of the groove so as-"at alltimes tokeep the top of the plate in contact with the'underside ofthe'blo'ck 11, and thus afford a wide,

substantial and eflicient support for' the bearing block 11. 'The latter at'each side has a vertical lip,or fian'ge'19 which overlaps the outer side of the bar '10,"andthe supporting plate 17 and to afford access to the latter in its recess when liners a're-= to be ap-plied, the end portion of one of the lips consists of a detachable plate 20 upon whose removal the end of the block-supporting plate 17 is uncovered. Said plate 20 is seated in a recess in the side of the adjustable wear block, and preferably the joint between the vertical Wall of the recess and the adjacent edge of said plate is formed by a rib and groove construction so as to afford, with an attaching bolt, a strong and secure connection. The joint between the ends of the adjustable block 11 and the end of the recess in the bar 10, is also overlapped and covered by a short flange, or projection 23 on the two ends of said block, and at each side thereof.

For purposes of construction, by which the bolt-engaging T-slots 12 may be wholly within the body of the block, the latter is made in two longitudinal parts that join on a plane to one side of the bolt heads, the

.together the open sides of the T-slots are closed, and said two parts are firmly joined together by several horizontal bolts, or screws 24 whose heads are counter-sunk so that they will not project beyond the outer side of the block 11, and thus offer no obstruction to the overhanging flange, or lip of the cross head. Preferably the same bolt or screw 24 which unites the two parts of the block is utilized for the attachment of the removable cover plate 20, but I, of course, do not limit myself to that construction, nor, indeed, to any of the details of construction which I have shown in the drawing and have described with particularity, because variation in design and construction may be made which will involve no departure from the scope of invention. Thus, though I show in the drawings the base or supporting bar 10 as formed of one integral piece, it may be built up of several pieces. The ofiset ends of the bar may be formed separately from the remainder and the ends and the body portion of the bar joined by vertical bolts that pass through overlapped portions thereof.

The manner of adjustment of my guide will be evident from the description that I have already given, and as will be plain, the adjusting operation can be readily and quickly performed and it will also be evident that at all points of its adjustment the cross head bearing block 11 will be solidly and rigidly supported.

Having thus described my invention what I claim is 1. A cross head guide comprising a base member, an adjustable bearing block, a plurality of supporting plates situated between the bearing block and said base and adjusting means acting upon said bearing block to lift the same from said supporting plates.

2. A cross head guide comprising a base member, an adjustable bearing block, a plurality of supporting plates situated between the bearing block and said base, the base having a recess for each of said supporting plates and adjusting means acting upon said bearing block to lift the same from said supporting plates.

3. A cross head guide comprising a base member, an adjustable bearing block, and a plurality of supporting plates situated between the bearing block and said base, the base having a recess for each of said sup porting plates, said recess extending from side to side of the base, and the bearing block having a removable cover plate lying over the end of said supporting plate.

A. A cross head guide comprising a base, a bearing block situated in a recess in the base, a plurality of adjusting bolts engaging threaded openings in the base and engaging said block, and a supporting plate at each end of said block and situated in a recess in the base said adjusting bolts acting to lift theblock from said supporting plates.

5. A cross head guide comprising a base, a bearing block situated in a recess in the base, a plurality of adjusting bolts engaging threaded openings in the base and engaging said block, a supporting plate at each end of said block and situated in a recess in the base, and the bearing block having a removable cover plate lying over the end of said supporting plate.

6. A cross head guide comprising a base, a bearing block situated in a recess in said base, an adjusting screw passing through a threaded opening in the base and having a head that acts upon said block to lift the same, the bearing block having a T- slot to receive said head and the adjacent portion of the screw, the bearing block be ing composed of members that join on a longitudinal plane, and means for connecting said two members.

7. A cross head guide comprising a base, a bearing block situated in a recess of the base that extends from side to side of the base, the bearing block having at each side a flange that overlaps the contiguous portion of the base, a plurality of supporting plates situated between the base and the bearing block and lying between said flanges and means for adjusting the bearing block to compensate for wear of the cross heads.

In testimony that I claim the foregoing I have hereunto set my hand.

HUGH H. WALCK.

Copies of this patent may be obtained for five cents each, by addressing the "Commissioner 0! Patents, Washington, D. Q. 

